Improved safe-lock



ward the top of the door, and again forms another right angle turning from the door, as shown in Fig. 4, still forming a third right angle toward wheel U, as in Fig. 4, and a turn, as in Fig. l, so as to come in contact With wheel U thus stopping the clock only when acted upon by lever' Q Q, when the catch is thrown into the nick O and drawn round 'by the iiiclmvheel, which takes place when the nick is brought fronting the end of the bolt B B, as shown in Fig. 1.

Fig. 2 presents a view from the front edge `of the door, and is designed to show more clearly the opening-shaft A A, the square of which protrudes from the outside of the door after having passed through it, round in form.

Fig. 2 also shows more clearly the bolt-fastening staple D D, the security-lever F F, the security-catch I, and lever E E.

Figs. 3 and 4 have been explained in connection with Fig. 1.

3 and 4 in Fig. 2 are blocks used for bearings to fasten other works to, being attached .to the plate.

Directions for locking this loda-First, slip the movable pinion-wheel X toward the end ofthe shaft till it ceases to gear with Wheel Z Z.

Second, raise the spring of lever Q Q till the catch passes out of the nick O, and turn thewheel around till the hand points to the dot or figure denoting the number of hours which the safe is required to be locked up. Now slip the pii'iion-wheel back on the shaft till it again gears into wheel Z Z. (Should the cogs of the pinion come in contact with those of wheel Z Z instead ot' gearing, turn the wheel Z Z till it gears in the nearest cog. rlhis ditiiculty will be overcome in practical use by having the cogs of both Wheel and pinion very small.)

Third, place the thumb of the right hand on the edge of the door, opposite the end ot' bolt B B, as seen in Fig. 2. Now place the fore! linger on security-lever F F at l 5 draw it forward till the first angle passes the edge of bolt B B. Now place the thumb of the left hand on leverE E. Press it down till the bolt B B rises past the nick-wheel N N. Now place the thumb of the right hand on the end ot' the boltB B, press it back against spring K, start the clock, and shut the door.

N. B.Be careful before closing the door that stop-lever S S does not come in contact with the cogs ot' Wheel U U.

Directions for unlocking-Place the key on the square ofthe opening-shaft A A. Turn to the let't and open the door,'still holding the key turned.

In practical use the clock will be wound from the inside.

The reason Why it is otherwise arranged in the model is, that as the model will probably be tried by persons unacquainted With it, they mightneglect to Wind it before locking, which would be a fat-al mistake.

The opening-shaft in practical use will also be made round in form to the outer face of the door, fitting so nicely that powder cannot be introduced by any means whatever, thus making it absolutely powderproof.

What I claim as my invention isl. The action of nick-wheel N N in preventing the bolt B B from being pressed back so as to unlock.

2. The application of a movable pinion on the shaft of wheel W W, in connection with 'a steel plate and hand, by means of which the lock is set to unlock at any given hour by the nick passing in front of the bolt B B and permitting it to pass Within the nick, and not until then.

3. The application of security-spring H, security-lever F F, and 'security-catch l in allowing bolt B B to pass back and over the rim of nick-Wheel N N, and again securing it opposite the rim ot nick-wheel N N when the door is shut.

4. The application of stop-levers S S and Q Q in stopping the clock when the nick is op posite bolt B B, by lever S S coming in contact with the cogs of wheel U U of the clock.

5. The application of spring L in pressing bolt B B aga-inst the plate of the Works.

OBADIAH BAYLY, JR.

Vitnesses:

JOHN K. THOMPSON, WILLIAM WHEELER. 

